Finding the Fourth Proportional to 11,871.73, 17,800.53 and 3,972.32

Step by Step Solution

1. Step 1: Write the proportion equation
   11,871.73 : 17,800.53 = 3,972.32 : x
2. Step 2: Convert to fraction form
   11,871.73/17,800.53 = 3,972.32/x
3. Step 3: Cross multiply
   11,871.73x = 17,800.53 × 3,972.32
4. Step 4: Simplify right side
   11,871.73x = 70,709,464.31
5. Step 5: Solve for x
   x = 70,709,464.31/11,871.73
6. Step 6: Final answer
   x = 5,956.12